In studying fresh-water algae and flagellates for the past 50 years, many new genera and species have been described and published in different magazines and in some of these descriptions, type… (More)

In the present fourth part of the list 23 new genera with type species are given. They have been published in Svensk Botanisk Tidskrift, in publications of Instituto de Engenharia Sanitaria-sURSAN,… (More)